Mity CPU Platforms

03/27/2019

DV 09:53 AM MitySOM-5CSX Altera Cyclone V FPGA Development: RE: Problem when programming FPGA from HPS

I attach the simple block diagram-based Quartus project that takes in input a 100 MHz differential clock and outputs a single-ended 25 MHz clock. It makes not use of Qsys and it isn't changing the HPS subsystem, but nonetheless I'm facin... Davide Vaccaro

03/26/2019

MW 05:23 PM MitySOM-5CSX Altera Cyclone V FPGA Development: RE: Problem when programming FPGA from HPS

Can attach a copy of your reference project? Is it based off of the one on our support site?
-Mike Michael Williamson

DV 04:55 PM MitySOM-5CSX Altera Cyclone V FPGA Development: RE: Problem when programming FPGA from HPS

So, I tried all the methods listed in https://rocketboards.org/foswiki/view/Documentation/GSRD131ProgrammingFPGA, but none is working. In particular:
* I'm not successful in configuring the FPGA from the Preloader because I'm not bein... Davide Vaccaro

03/25/2019

DV 03:11 PM MitySOM-5CSX Altera Cyclone V FPGA Development: RE: Problem when programming FPGA from HPS

Hi Mike,
in the "final" Quartus program I will indeed need to change the configurations you mentioned, but for a start I decided to use a very simple Quartus project, which does not touch the HPS subsystem (a basic bdf that turns a di... Davide Vaccaro

03/20/2019

SA 04:58 AM MitySOM-5CSX Altera Cyclone V Software Development: Dual QSPIs + Device Tree

I've got a SOM with 2 QSPIs. I'd like to be able to access both in Linux. Does anyone have an example of a .dts file that generates a .dtb which allows Linux to access both QSPI devices? Shane Avery

03/19/2019

MW 03:40 PM MitySOM-5CSX Altera Cyclone V FPGA Development: RE: Problem when programming FPGA from HPS

Hi Davide,
Are you enabling or changing the configuration of the FPGA to SDRAM (fpga2sdram) or HPS AXI crossbars in the HPS configuration or enabling additional peripherals in the HPS subsystem?
If you are, then you will need to ge... Michael Williamson

DV 03:25 PM MitySOM-5CSX Altera Cyclone V FPGA Development: Problem when programming FPGA from HPS

Hi everyone,
I looked at previous posts but the solutions outlined does not seem to work in my case, so I'm writing as well in hope to solve the problem I'm experiencing.
I am using a Critical Link Development Kit with a MitySOM-5C... Davide Vaccaro

02/28/2019

JC 04:45 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: We want to know about SPI for CAN Interface with Linux

sin-ka kang wrote:
> Thank you for reply.
> ...
Linux has several mechanisms for creating device node files automatically based on what is configured in the kernel. Its almost always the wrong answer to manually create a device node. ... Jonathan Cormier

02/27/2019

SK 08:27 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: We want to know about SPI for CAN Interface with Linux

Thank you for reply.
You said that I don't have to make any nodes with 'mknod' command to me,
but when i want to access to SPI1 to control mcp2515 directly, how can I access to SPI1? like open(/dev/spi1.1); in linux.
sin-ka kang